Topic Details (Notes format)

Cell: Structure and Functions

Subject: General Science

Book: NCERT Science Class 8

The cell is the basic unit of life.
- **Types**:
- Plant cells (cell wall, chloroplast).
- Animal cells (no cell wall).
- **Cell Components**:
- Nucleus (controls activities).
- Cytoplasm (contains organelles).
- **Functions**:
- Growth, repair, reproduction.

**Possible Exam Questions:**
1. What is the difference between plant and animal cells?
2. How does the nucleus control cell activities?
3. What are the functions of different cell organelles?
4. Why is the cell called the basic unit of life?
5. Explain the process of cell division.

Practice Questions

Which process in plants is responsible for the loss of water vapor?

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Which part of the brain is responsible for balance and coordination?

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Which gas is used in fire extinguishers?

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Which process describes the splitting of a nucleus into smaller nuclei?

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What type of energy is stored in a stretched rubber band?

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Which organ regulates blood sugar levels in the human body?

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What is the unit of force in the SI system?

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Which vitamin is essential for calcium absorption?

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Which component of blood carries oxygen?

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What is the main function of the ozone layer?

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